docs: def fix_line_breaks(s):
      """
      Convert \r\n and \r to \n chars. Strip any leading or trailing whitespace
      on each line. Remove blank lines.
      """
      l = s.splitlines()
      x = [i.strip() for i in l]
      x = [i for i in x if i]  # remove blank lines
      return "\n".join(x)